1) Long time ago I hit a sparrow with my left hand when I was driving too fast and he was veering too slow.
2) A couple years past I had an owl swoop down at me out of a tree on North Territorial. I was moving along about 45mph and he didn't hit me, but I got a good look at his extended talons from a couple feet away. A following rider confirmed it was an owl.
3) More recently, I'm on a dirt road in farm country. The trees are planted tightly in windrows along both sides of the road. There is a big bird (not BigBird) in the middle of the road gnawing on some roadkill. Probably a turkey vulture, maybe an eagle, way bigger than a hawk. As I approach, he stays on the road kill beyond when I would expect him to be leaving. So I slow just a bit, and finally he takes off, but instead of heading for the field, he is flying straight at me, about head high, down the middle of the road. So here I am, playing chicken with a bird, my 35mph plus whatever his speed is. His idea not mine. At about 50 feet I was ready to concede victory to the bird, slam on the brakes, swerve, full tuck, I don't know, when at last he made a sharp left and found an opening in the trees. I didn't check the road kill as I passed but it occurred to me that it might have been an earlier arriving motorcyclist.